<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>更改商品信息</h1>
<form action="/update">
  <input type="text" name="id"placeholder="请输入要修改商品的ID">
  <input type="text" name="title" placeholder="标题">
  <input type="text" name="price" placeholder="价格">
  <input type="text" name="saleCount" placeholder="销量">
    <input type="submit" value="修改">
</form>
</body>
</html>